Adhesive compositions having a carbon black component

ABSTRACT

article provided with a pressure-sensitive adhesive layer composition, which composition is characterized by improved flow resistance at high temperatures (e.g. at 90° C), and which comprises 50-97 parts by weight of a bituminous component dispersed in an extender oil, 3 to 50 parts by weight of at least one thermoplastic polymer, which is preferably a block polymer having the general structure: 
     
         A--B--(B-A)n 
    
     where A is a monoalkenyl arene block, B is a conjugated diene block, and n is an integer from 1-15, and 5 to 50% by weight (based on the combined weight of the bituminous component and the thermoplastic polymer) of a carbon black having an oil absorptivity of above 80 milliliters per 100 grams. Such articles usually possesses good low temperature flexibility, tack and adhesive strength.



